package cn.itcast.bos.web.action.base;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Row;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

import cn.itcast.bos.domain.base.Area;
import cn.itcast.bos.service.base.AreaService;
import cn.itcast.bos.utils.PinYin4jUtils;
import cn.itcast.bos.web.action.common.BaseAction;

@ParentPackage("json-default")
@Namespace("/")
@Controller
@Scope("prototype")
public class AreaAction extends BaseAction<Area> {
	@Autowired
	private AreaService areaService;
	
	// 接受上传文件
	private File file;

	public void setFile(File file) {
		this.file = file;
	}

	// 批量区域数据导入
	@Action(value = "area_batchImport")
	public String batchImport() throws  IOException {
		// System.out.println("file:" + file);
		//加载Excel文件对象
		HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(file));
		//读取一个sheet
		HSSFSheet sheet = workbook.getSheetAt(0);

		List<Area> areas = new ArrayList<Area>();
		//读取sheet中每一行
		for (Row row : sheet) {
			// 跳过第一行
			if (row.getRowNum() == 0) {
				continue;
			}
			//跳过空行
			if (row.getCell(0)==null || StringUtils.isBlank(row.getCell(0).getStringCellValue())) {
				continue;
			}
			// 编号,省份,城市,区域,邮编
			Area area = new Area();
			area.setId(row.getCell(0).getStringCellValue());
			area.setProvince(row.getCell(1).getStringCellValue());
			area.setCity(row.getCell(2).getStringCellValue());
			area.setDistrict(row.getCell(3).getStringCellValue());
			area.setPostcode(row.getCell(4).getStringCellValue());
			
			//基于pinyin4j生成城市编码和简码
			String province  = area.getProvince();
			String city = area.getCity();
			String district =area.getDistrict();
			province = province.substring(0,province.length()-1);
			city = city.substring(0,city.length()-1);
			district = district.substring(0,district.length()-1);
			//简码
			String[] headArray = PinYin4jUtils.getHeadByString(province+city+district);
			StringBuffer buffer = new StringBuffer();
			for (String headStr : headArray) {
				buffer.append(headStr);
			}
			String shortcode = buffer.toString();
			area.setShortcode(shortcode);
			//城市编码
			String citycode =PinYin4jUtils.hanziToPinyin(city,"");
			area.setCitycode(citycode);
			areas.add(area);

			System.out.println("添加区域" + area);
		}
		areaService.saveBatch(areas);
		return NONE;
	}
	
	
	@Action(value = "area_pageQuery",results = {@Result(name="success",type="json")})
	public String pageQuery(){
		//构造分页查询对象
		Pageable pageable = new PageRequest(page-1, rows);
		
		//构造条件查询对象
		Specification<Area> specification =new Specification<Area>() {

			@Override
			public Predicate toPredicate(Root<Area> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
				//创建条件保存集合对象
				List<Predicate> list = new ArrayList<Predicate>();
				
				//添加条件
				if (StringUtils.isNotBlank(model.getProvince())) {
					//根据省份模糊查询
					Predicate p1 = cb.like(root.get("province").as(String.class),"%"+model.getProvince()+"%" );
					list.add(p1);
				}
				if (StringUtils.isNotBlank(model.getCity())) {
					//根据省份模糊查询
					Predicate p2= cb.like(root.get("city").as(String.class),"%"+model.getCity()+"%" );
					list.add(p2);
				}
				if (StringUtils.isNotBlank(model.getDistrict())) {
					//根据省份模糊查询
					Predicate p3 = cb.like(root.get("district").as(String.class),"%"+model.getDistrict()+"%" );
					list.add(p3);
				}
				return cb.and(list.toArray(new Predicate[0]));
			}
		};
		//调用业务层完成查询
		Page<Area> pageData = areaService.findPageData(specification,pageable);
		//压入值栈
		pushPageDataToValueStack(pageData);
		return SUCCESS;
	}

}
